The Galapagos finches were an important clue to Darwin's thinking about the origin of species. These finches are believed to have descended from a single ancestral species that colonized the Galapagos archipelago, America, over a short period of time. The Galapagos finches differ in their beak shape and size. Different species feed on seeds that vary in size and hardness. Which of the following is the most likely explanation for these patterns?

#Question id: 3489

#Section 2: Evolution

 In a bird species A, the male alone builds the nest, incubates the eggs and feeds the nestling. In bird species B, it is the female that does all that. In bird species C, both sexes contribute equally to the above activities. In species A and B, the uninvolved partner may fly away and mate again. Which sex among A, B and C is most likely to develop colorful plumage during breeding season?

#Question id: 3491

#Section 2: Evolution

Some dogs love attention, and learns that if he barks, he gets attention. Which of the following might you use to describe this behavior?

A) The dog is displaying an instinctive fixed action pattern.

B) The dog is trying to protect its territory.

C) The dog has been classically conditioned.

D) The dog's behavior is a result of operant conditioning

E) The dog is displaying controlled by external stimuli

#Question id: 3492

#Section 2: Evolution

A mother goat can recognize its own kid by smell, types of animal behavior

A) Operant conditioning

B) Learn behavior

C) Innate behavior

D)  Imprinting

#Question id: 3493

#Section 2: Evolution

Which of the following is incorrect?

#Question id: 3367

#Section 2: Evolution

The largest unit within which gene flow can readily occur is a

#Question id: 3431

#Section 2: Evolution

In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as